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《Chinese Journal of Sensors and Actuators》 2012-04
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Design of Coin Identification System Based on Eddy Current Sensor

GUO Yu,LI Yanmei,WANG Peng(School of Physics and Electrical Engineering,Anqing Teachers College,Anqing Anhui 246011,China)  
In order to distinguish the true coin from the false ones,an identification system of one-Yuan coins is designed,based on different physical characteristics,such as material and thickness.The basic principle is that true coins and false coins have different signal frequency and inductance,aroused from their different responses to Eddy Current Sensor when passed through this system.This simple system can realize rapid identification of one-Yuan coins,count and display the number of true ones.It sounds the alarm as soon as the system finds false ones.
【Fund】: 安庆师范学院青年科研基金项目(K10025000030);; 安徽省高校省级科学教研项目(KJ2012Z235)
【CateGory Index】: TP212
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